Agricultural implement.



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H. H. BOENKBR. AGRICULTURAL IMPLBMENT.

APPLICATIGN FILED DBC. a. 1910.

Patented Jan. 28, 1913.

3 SHEETS-'SHEET 2.

H. H. BOENKER.

AGRICULTURAL IMPLEMENT.

APPLICATION YILED 1120.8, 1910.

1,051,801 Patented Jan.28,1913.

3 SHEETS-SHEET 3,

Sme/nto@ HENRY H. BIOENKER, OF ST. CHARLES, MISSOURI.

AGRICULTURAL IMPLEMEN T.

Specication of Letters Patent.

Patented Jan. 28, 1913.

Application tiled December 8, 1910. Serial No. 596,303.

To aM 'whom it may concern:

Be it known that I, HENRY H. BosNKiin, citizen of the United States, residin at St. Charles, in the county of St.. Char es and State of Missouri, have invented certain new and useful Improvements in Agricultural Implements, of which the following is a specification.

This invention relates to agricultural machinery and more particularly to a mechanically propelled plow for tilling the soil preparatory to planting.

The object of 'the-invention is to provide a motor plow including a main frame having a draw bar or rod mounted on the'rear end thereof and to which is operatively connected a freely movable auxiliary plow carrying frame, means being provided for raising and lowering the auxiliary frame, therebv to regulate the de ith of penetration of the plow into the soi A further object is to provide a plow carrying frame, the construction of which is such that the rear end thereof is free to move in a vertical plane in case the guide wheels at the forward endl of the frame should enter a rut or hole in the ground.

A further object. is to provide the main frame with vertically adjustable stub axles so that the traction wheels thereof may be raised or lowered inde endently of each other, thereby to level t e machine, as for instance, when one of the traction wheels is traveling in a furrow.

A further object is to provide the main frame with an auxiliary frame or yoke which spans the low carrying frame and forms a combine guide and rub iron for said plow carryingframe. Y

A still further object of the invention is generally to improve this class of machinery so as to increase their utility, durability and eflieiency. I

Further ob'ects and advantages will appear in the ollowing description, it being understood that various changes in form, proportions and minor details of construction may be resorted to within the scope of the appended claims.

For a. full understanding of the invention and the merits thereof, reference islto be had to the following description and aecom- .panyingvdrawinga inwhich: Y L

Figure 1 is a side elevation partly in sec- .tion of a, motor plow constructed in accordance' with my inventiomFig. 2 is a top plan view, Fig. 3 is a transverse sectional view, showing the construction of the rear yoke of the inain frame; Fig. 4 is a perspective view of the plow carryin frame and its associated parts detache Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The improved motor driven plow forming the subject matter of the present invention comprises a inaiii frame including superposed parallel outer side bars 5 and 6 preferably formed of tubing and having their forward ends riveted or'otherwise rigidly secured to annular reinforcing members or rings 7 constituting the front end of the machine.

Spaced fi'om the outer side bars 5 and G are inner side bars 8 and 9 also formed of tubing and having their forward ends rigidly secured to the adjacent annular members or rings 7. The outer side bars 5 and 6 are connected by vertically disposed bearing blocks 10, there being'similar bearing blocks 11 connecting the inner side bars 8 and 9, said bearing blocks being provided with a vertical row of openings 12 disposed in transverse alinement and adapted to receive stub axles, indicated atv 13. The intermediate portions of the stub axles 13 are cylindrical in cross section, while the opposite ends thereof are provided with squared terminals 14 having o enings formed therein for the reception o cotter pins or similar fastening devices, thereby to prevent rotation of said stub axles.

The inner and outer side bars of the main frame are spaced apart to form compartments 15 adapted to accommodate traction wheels 16, said traction wheels being loosely mounted on the stub axles and each provided with a sprocket wheel 17.

It will be here noted that the traction wheels 16 are independently mounted on the stub axles, the latter being adjustable vertically of the frame so as to permit either wheel to be raised or lowered independently of the other to level the machine as for instance, when one of the traction w eels is traveling in a furrow.

Interposed between the inner side bars 8 and 9 of the main frame, are inverted U- shaped auxiliary frames or yokes 18 and 19 the op osite legs of the yoke 18 bein spaced inwarly from the rear end of t e main frame and rigidly secured to the adjacent inner side bars 8 and9,,and lthe legs of the yoke 19 Vbeing disposed at the extreme rear end of the truck, as shown.

Rigidly secured to the opposite legs of the yoke-v19', are substantially rectangular conf necting frames 20, which'latter extend transversely across the compartments 15 and are rigidly secured to the inner and outer side 1 bars, thus toproperlyspace said bars and et the'samel time'secure the several parts in assembled position."

The?y opposite legs vof the yoke 18` are formed with transversely alined openings in which is seated a transverse rod 21, the lat-ter eonstitut-in a draw bar-for the plow carrying frame,1ndicated at 22. The rear end of the frame 22 is closed,while the front end thereof extends between the inner side bars 8 andl 9 for attachment to the draw bar 21, therev bein suitable sup orts secured to the frame 22 gor the plow siares 23, any number of which may be used.

Secured to the inner ends of the side bars constituting the plow carrying frame 22, are segmental plates 24 havinar arcuate slots 25 formed therein to permit t e assage of the rod or draw bar 21, there eing suitable rollers 26 mounted on the opposite ends of .the-draw bar at the slots 25 and provided with flanges 27 which bear against the outer lfaces o'the segmental plates 24 so as to assist in preventmglateral movement of the plowcarrying frame.

The segmental plates 24 are provided with reduced shanks 28, preferably offset with resp'ect'to the lates 24 and having their ends bolted or otierwise rigidly secured to the adjacent portion of the plow carrying frame 22. The segmental plates 24 are connected to the side'bars of the plow carrying frame by inclined braces 29, which braces serve to reinforce and strengthen said frame.

It will here be noted that the plow carryingframe-22 is free to move vertically of the main' supporting frame or truck so as lto'conform toany yme ualities on the sur- `fa'ce'oftheground and also to permit the tplow'carrying'frameto be adjusted verti- `call'yof'the'truck so as toregulate the'depth ofipenetration ofythfe plow shares into the soil., It will* also be noted that' the plow :carrying framef 22 is`4 pivotally mounted on Vthe' lower'fend's of the` hangers 33 so that 'the A'plow carrying frame is,` free t'o move vertically( with theI ivotal connection between' the frame and angers'33'as a'center,

vthe/arcuate slots 25'l permitting `tilting move-V mentof'th' front end ofl the plow carrying yframewithout binding or wedging action .betwenf th'e parte.

I"Secultedd to the" innerzsidef bars 9 are bracl'etsfBOf'i'xr' whichis i journaled a 'trans- ,verser sh'laftlv having oppo'sit'elyl disposed lvcrafxk"arms-32"f`t r'em'agementv with suitable hangers 33. The hangers 33 embrace the side bar's of the plow carrying frame 22 and are preferably provided with a series of vert-ical openings 34 adapted to receive a transverse pin, which latter in turn engages the adjacent crank arm 32. An auxiliary arm 35 is secured to the shaft 31 and is connected through the medium of a link 3G with an operating lever 37, so that by tilting the lever 37 on its pivotal axis, the rear end of the plow carrying frame may be raised or lowered.

Pivotally mount-ed at 38 on the side bars of the plow carrying frame, are depending brackets 39 in which is journaled a shaft 40 carrying spaced guide wheels 41 adapted to bear against thc surface of the ground in advance of the plow shares 23, said brackets being provided with arcuate rack bars 42, the teeth of which mesh with corresponding pinions 43 carried by a transverse shaft 44 Journaled in the side bars of the plow carrying frame 22. The shaft 44 is also provided with a worm wheel 45 which meshes with a worm 46 carried by a vertically disposed post or staff 47, so that by rotating the hand wheel 48 of said staff, the wheels 41 may be raised or lowered so as to regulate the cutting of the plow shares.

It will here be noted that by suspending the hangers 33 from thc rear end of the main frame or truck in the manner described, the front end of the plow carrying frame is free to move vertically should the guide wheels 41 enter a rut or hole in the ground during the passage of the machine over a field or other inelosure. It will also be noted that the inner end of the plow carrying frame is free to move vertically on the draw bar or rod 21 .so that the member 22 forms in effect a floating frame.

The truck is provided at its forward end with a steering wheel 49 carrying a horizontally disposed fifth-wheel 50, around which is wrapped a cord or cable 51, the latter being connected with a steering rod 52 for the purpose of guiding the machine. A motor 53 is also arranged on the truck and operatively connected through the medium of suitable gearing 54 with the-rear wheels 16 of the truck for propelling the latter. The frame construction, fifth-wheel, steering wheel, gearing and propelling mechanism, form the subject-'matter of a separate'application and hence further description thereof is deemed unnecessary.

Attention is here called to the fact that the arched frame or yoke 19 permits vertical adjust-ment of the plow carrying frame 22 and not only forms a guide and prevents side movement of said plow carrying frame. but also forms in effect a rubiron therefor. It will also be noted that by removing the rod-or draw bar 21, the plow carrying frame'22 may be readily detached from the main sup porting frame or. truck so as to permit said truck to be. used for ,other purposes.

The segmental racks 42 and worm gear 46 not only dispense with the employment of operating levers for adjusting the plow carrying frame, but also allow a better and nicer adjustment of the plow frame with 'respect to the truck.

Having thus described the invention, what is claimed as new is:

1. In "a device of the character described, a wheeled truck, a transverse draw bar mounted on the truck, a plow carrying frame having its inner end provided with arcuate slots for the reception of' the draw bar, rollers mounted on the draw bar and bearing against the walls of the slots, guide wheels depending from the plow carrying frame, means for raising and loweringthe guide wheels, hangers operatively connected with the Outer end of theplow carrying frame, and means for raising and lowering the hangers. i

2. -In a machine of the character described, a wheeled truck, a transverse draw bar carried by the truck, a. plow carryin frame, segmental plates carried by and o set with respect to the frame and having arcuate slots formed therein the walls of which are smooth and adapted to receive the draw bar, rollers carried by the draw .i

bar and bearing against the smooth walls of the arcuate slots, said rollers being provided with ianges bearing against the outer faces of the segmental plates, and means for raising and lowering the plow carrying frame.

Y 3. In a machine offhe` daags-described, a Wheeled truck, a draw bar elXtending transversely of the truck at the rear thereof, a plow carrying Vframe loosely mounted on the Vdraw bar' and having its inner end provided with spaced-slots adapted to receive the draw bar, the walls of said slots being smooth and unobstructed, guide wheels depending from the side walls of the plow carrying frame near said slots, means for raising and lowering the guide wheels, and

' means operatively connected with the outer end ofthe plow carrying frame for raising and lowering the latter. Y

`4. Ina machine of the character described, a wheeled truck, a transverse draw bar mounted on the truck, a plow carrying frame l having its inner end formed with slots adapted to receive the draw bar, hangers embracing the outer end of the frame and provided with spaced perforations, a shaft jo-urnaled on the truck, pins seated in said perforations, terminal arms secured to the shaft and adapted to engage.

thepins of the hangers, an intermediate arm secured to the shaft, a lever loperatively Y connected. with the intermediate arm -for raising and lowering the hangers, guide wheels depending from the plow carrying frame, and means operatively connected with the guide wheels for raising and lowering the latter.

5. In a machine of the character described, a main frame including inner and outer sets of longitudinal side bars, spaced yokes interposed between the inner set of side bars, vided with openings, a draw bar seated. in said openings, a plow Acarrying frame having slots formed in the inner end thereof and adapted to receive the draw bar, and means' for raising and lowering the outer end of the plow carrying frame, the other yoke embracing the plow carrying frame and constituting a guide therefor.

6. In a machine of the character described, a main frame including longitudinal side bars, a substantially U-shaped yoke interposed between the side bars and having openings formed therein, a draw bar seated in said openings, a plow carrying frame having its inner end provided with spaced slots for the reception of the draw bar, guide wheels depending from the plow carrying frame at the end thereof, means operatively connected with and adapted to raise and lower the guide wheels, and a second yoke embracing the plow carrying frame and provided with oppositely disposed connecting frames secured to the side bars, said second yoke forming a' guide and rub iron forthe plow carrying frame.

7. In a machine of the characterV described, a main frame including longitudinal side bars, a yoke interposed between the side bars and provided with transversely'alined openings, a draw bar seated in said openings, a plow carrying frame having the inner ends vof its side bars offset and provided with, plates having arcuate slots formed therein and adapted to receive the draw bar, rollers mounted on the draw bar and engaging the walls of the slots, a second inverted U-shaped yoke secured to the side bars of the main frame and spanning the plow"T carrying frame, connecting 'frames secured to the last mentioned yoke and the adjacent side bars of the main frame, said last mentioned yoke forming a guide and rub iron for the plow carrying frame, and means for raising and lowering said plow carrying frame.

8. In a machine of the class described, a main frame including longitudinal side bars, an inverted U-shaped frame connected with theV side bars and having transversely alined openings formed therein, a rod seated in said openings and constituting a draw bar, a plow carrying frame including spaced side bars having their inner ends provided with arcuate slots for the reception of the draw bar, and a second inverted U-shaped frame secured to the side bars of the main frame and extending across the top of the the legs of one yoke being prog plow carrying frame, said last mentioned of the draw bar and having its outer end 10 frame serving to prevent lateral movement free to swing within the other yoke. of the plow carrying frame. vIn testimony whereof, I aix my signature 9. Ifr;` a macline of 1the clafss dlescribebd, a in presence of two Witnesses.

5 main ame inc u ing ongitu ina si e ars,

spaced yokes secured to thel side bars, a draw HENRY H' BOENKER' [1" 5] bar extending transversely through one vof Witnesses: the yokes, and a plow carrying frame pivot- LOUIS RINGE, ally connected with and adjustable vertically LEO ECHELMEIER.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington. D. C. 

